A calculus problem by أحمد الحلاق
Calculus
Level
4
\[ \large \lim_{x\to0} \dfrac{5^{3x} - 5^x - 5^{2x} + 1}{\sqrt{1+\cos x} - \sqrt2} \]
The limit above has a closed form. Find the value of this closed form.
Give your answer to 1 decimal place.
by
أحمد الحلاق